Regulated-contact push-button.



B. URQUHART. REGULATED CONTACT PUSH BUTTON. APPLICATION FILED 0CT.5, 1909.

1,059,01 3. Patented Apr. 15,1913.

wuewcoc wilma/wa@ M/ M' A l @Hoz ma to close the circuit, the terminal-carrying In testimon whereof I aix my signature element tending to reassume its original p0- 1n presence o two witnesses. sition when the normal pressure of air therein is restored by the release of the actuating BENJAMIN URQUHART means 6r leakage of the com ressed air, Witnesses: whereby the duration of contact 1s limited in WEBB GARmsoN,

extent. W. D. URQUHART. 

